Cuff-button or stud



(No Model.)

' 0. 0. GHAMPE-NOI GUPP BUTTON 0R STUD.

No. 528,715. Patented Nov. 6, 1894.

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UNITED STATES" PATENT OFFICE.

CHARLES C. CHAMPENOIS, OF NEWARK, NEW JERSEY.

CUFF-BUTTON OR STUD.

SPECIFICATION forming of Letters Patent No. 528,715, dated November 6,1894.

Application filed June 5,1894. Serial No. 613,597. (No model-l to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification.

My present invention relates to improvements in reversible studs orbuttons, composed of a base-plate and a separate combined post and studor button for detachablyconnecting said post with said base-plate.

The invention consists essentially in the combination and arrangement ofa suitable spring or springs placed in the casing or shell of thebase-plate of the stud or button and a screw-post, provided at or nearits pointed end with a slot on each side, whereby when the post isscrewed into a screw-threaded hole in the base-plate, the holdingportions or arms of the spring or springs are separated or forced apart,until said slots in the post are brought opposite said spring arms, topermit the latter to spring into said slots and hold the sev-' eralparts of the button in their locked engagement. By the arrangement andcombination of the parts to be hereinafter more fully described, a verysafe and positive fastening for the separable parts of the buttons orstuds 05 this class is the result, and there is no danger of the partsbecoming separated as might be the case in the construction heretoforemade and provided with a finger-piece extending from the side of thecasing.

My invention is clearly illustrated in the accompanying sheet ofdrawings, in which- Figure 1 is a side view of my novel form ofreversible stud or button. Fig. 2 is a horizontal section, taken on linew in Fig. 1; and Fig. 3 is a horizontal section taken on line y in saidFig. 1 clearly illustrating the arrangement of two springs in lockedengagement with the oppositely arranged slots near the pointed end ofthe post. Fig. 4 is a similar section of said parts, said post beingindicated turned, so as to disengage the holding arms of the springsfrom the slots in the post, said view clearly illustrating the positionsof said spring-arms, when said post has thus been turned. Fig. 5 is avertical section of the button or stud. Fig. 6 is a perspective View ofsaid screw-threaded and slotted post, and Fig. 7 is an enlarged detailview of the pointed end of said post, illustrating more clearly theoppositely arranged slots at or near the pointed and screw-threaded endof said post. Fig. 8 is a perspective view of one of the springsemployed in the construction illustrated in said Figs. 3, 4 and 5. Figs.9, 10, 11 and 12, are horizontal sections of a button or stud embodyingthe principles of my invention, said views illustrating holding springsof modified forms of construction, with which said pointed and slottedscrew= post can be made to engage.

Similar letters of reference are employed in each of the above describedviews, to indicate like parts.

In said drawings, Aindicates the complete button or stud. B is the postor stem, and C is the base-plate, containing the means with which thescrew-post B can be detachably connected. 7

The base-plate, as will be seen from Figs. 1 and 5, consists essentiallyof a cup-shaped shell cwithin which I place a disk 0 with a centrallyarranged hole a therein. Upon this disk are loosely arranged two springs01 and d, provided with the spring arms d and (2 each other. Each springat and d is provided with suitably shaped spurs d, the spur on eachspring being fitted against the curved portion at of the other spring.In this manner said springs are properly fitted in the shell, as will beseen from Figs. 3 and 4, bringing the spring arms (1 and d directlyacross the central opening in said disk 0 and a screw-threaded hole 6 ina boss e'on the plate e. Said plate is secured in the surrounding rim ofthe shell 0 by a bead 0 closed down upon said plate in the usual manner.

The post B, as will be seen more especially from Fig. 7, is providedwith a point I) and a screw-thread b. In the opposite sides of saidscrew-threaded end of the post I have formed the two slots b and 12 Onthe opposite end respectively, which are arranged parallel with of saidpost is the base-plate a. NOW, W e

10 and 11, to retain their proper and operative holding positions in theshell 0, I use in said pointed end of the post is passed through thebutton hole or other opening in the garment, said end is inserted intothe screwthreaded hole in the boss e of the plate 6 and screwed uptherein. This will force the pointed end of the post between the twospring arms (1 and (1 thereby forcing them apart, as illustrated in Fig.4, until the slots b and b in said post are brought directly oppositesaid arms 61 and (1 By the spring action of said arms they will springinto said slots in the post, as indicated in Figs. 3 and 5, and therebysecurely hold the parts in their locked engagement. To separate the postB from its holding engagement with said springarrns, all that isnecessary is to turn the post and the base-plate a in oppositedirections. The edges b of the slots will then ride against the saidsprings d and d thereby causing them to spread, as indicated in saidFig. 4,

and the post can be unscrewed from said screw-threaded boss e, as willbe evident.

By the screw-threaded post provided with oppositely placed slots,adapted to engage with the spring or springs in the shell 0, I havedevised a particularly safe construction adapted for valuable buttons orstuds. This form of construction may also be used as a reversible studor button, both base-plate and the button or stud portion being suitablyornamented or engraved.

In lieu of the spring d and d, illustrated in connection with Figs. 3and 4, I may use the forms of springs D illustrated in Figs. 9, 10, 11and 12.

To cause the springs illustrated in Figs. 9,

connection with said springs certain peculiarly shaped disksf, as inFig. 9, or f as in Figs. 10 and 11. The action of said pointed andscrew-threaded post B against the armportions (1 and d of said springs,in Figs. 9, 10, 11 and- 12, is similar to that described in connectionwith the parts illustrated in Figs. 3 and 4:.

Having thus described my invention, what I claim is The herein describedbutton or stud, comprising therein, a casingc and a disk e securedtherein provided with a hub having a screwthreaded hole, a perforateddisk in said casing, a pair of springs cl and d havingspringarms 01 andcl respectively, spurs d on each spring resting against curved portions(1 of said springs, a screw -post adapted to be screwed into said hub toseparate said springarms d and d and slotson the opposite sides of saidpost at or near the screw-threaded end thereof, adapted to engage withsaid spring-arms and cause the parts of the button to be locked,substantially as and for the purposes set forth.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 28th day of May, 1894.

CHARLES C. CHAMPENOIS.

Witnesses:

FREDK. C. FRAENTZEL, WM. H. CAMFIELD, Jr.

